FIELD: oil and gas industry.
SUBSTANCE: method involves use of the well and flow column lowered to it, pumping to productive formation of liquid or liquid-gas mixture prepared by using the mixing device the discharge of which is interconnected with flow column, and low and high pressure chambers - with gas and/or liquid sources. According to invention, the pumping of liquid or liquid-gas mixture is performed periodically to the watered-out interval of productive formation. On bottom hole of the well, in annular space between flow column and casing string in the interval above and within the limits of the watered-out part of productive formation there installed are not less than two packers. Annular space in the packer installation interval is filled with non-newtonian fluid. Two circulation valves are installed in flow column. One is installed in watered-out interval of the formation, and the other one - above the upper packer.
EFFECT: increasing operating efficiency of wells at hydrocarbon deposits, the operation of which is complicated with water penetration into deposits.
5 cl, 1 dwg
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Authors
Dates
2010-06-27—Published
2009-03-11—Filed